Writing instrument



FIG. 1 is a left side view of a writing instrument showing my newdesign, in an exploded condition;

FIG. 2 is a right side view thereof;

FIG. 3 is a bottom plan view with the cap member removed for convenienceof illustration;

FIG. 4 is a top plan view;

FIG. 5 is a front elevational view;

FIG. 6 is a front elevational view in an exploded condition; and,

FIG. 7 is a front elevational view in an exploded condition of analternative embodiment.

The ornamental design for a writing instrument, as shown and described.